xmlserializer

I've got a very strange problem when working with .NET's XmlSerializer . Take the following example classes: public class Order { public PaymentCollection Payments { get; set; } //everything else is serializable (including other collections of non-abstract types) } public class PaymentCollection : Collection<Payment> { } public abstract class Payment { //abstract methods } public class BankPayment : Payment { //method implementations } AFAIK, there are three different methods to solve the InvalidOperationException that's caused by the serializer not knowing about the derived types of Payment .

I am experiencing a really HUGE performance loss while calling a simple XmlSerializer.Deserizlize() on a class with lots of fields. NOTE : I'm writing the code without Visual Studio, at home, so it may have some errors. My serializable class is flat and has hundreds of fields: [Serializable] class Foo { public Foo() { } [XmlElement(ElementName = "Field1")] public string Field1; // [...] 500 Fields defined in the same way [XmlElement(ElementName = "Field500")] public string Field500; } My application deserializes an input string (even small): StringReader sr = new StringReader(@"<Foo><Field1

I need to serialize my object in such a way that the properties I want, would get wrapped around CData sections. I was hoping I could do something like this : public class Order { [JsonProperty] public int OrderId { get; set; } [JsonProperty] public string Name { get; set; } [JsonProperty] public int Type { get; set; } [JsonProperty] public decimal Amount { get; set; } [JsonProperty] public DateTime Date { get; set; } [DataMember] [JsonProperty] **[WrapCData]** public List<Option> ListB { get; set; } [DataMember] public List<string> ListC { get; set; } **[WrapCData]** public Product Product {